| 基于IBIS模型的仿真分析在SDRAM印刷电路板设计中的应用 |
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| 引用本文： | 张东,李琼,秦前清.基于IBIS模型的仿真分析在SDRAM印刷电路板设计中的应用[J].武汉大学学报(理学版),2011,57(1):83-87. |
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| 作者姓名： | 张东 李琼 秦前清 |
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| 作者单位： | 1. 武汉大学,物理科学与技术学院,湖北,武汉,430072
2. 武汉大学,测绘遥感信息工程国家重点实验室,湖北,武汉,430072 |
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| 基金项目： | 国家自然科学基金资助项目(69983005) |
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| 摘 要： | 针对高速数字视频系统印刷电路板(PCB)设计中由于传输线的高频特性导致的信号完整性问题,通过输入/输出缓冲器信息规范(input/output buffer information specification,IBIS)模型对TI公司提供的TMS320DM642芯片扩展的外部存储器的反射仿真以及对同步动态随机存储器(SDRAM)的时序仿真来优化数字视频系统的PCB的设计.结果表明,使用这些设计方案可以有效地提高信号完整性,从而增强高速数字视频系统的可靠性.
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| 关 键 词： | IBIS模型 同步动态随机存储器(SDRAM) 高速电路 印刷电路板(PCB)设计 |
Application of Simulation Analysis Based on IBIS Model to SDRAM PCB Design |
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| ZHANG Dong,LI Qiong,QIN Qianqin.Application of Simulation Analysis Based on IBIS Model to SDRAM PCB Design[J].JOurnal of Wuhan University:Natural Science Edition,2011,57(1):83-87. |
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| Authors: | ZHANG Dong LI Qiong QIN Qianqin |
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| Institution: | ZHANG Dong1,LI Qiong1,QIN Qianqin2(1.School of Physics Science and Technology,Wuhan University,Wuhan 430072,Hubei,China,2.State Key Laboratory of Information Engineering in Surveying of Mapping and Remote Sensing,China) |
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| Abstract: | Due to the high frequency characteristics,the signal integrity problems in design of PCB(printed circuit board) in the high-speed video system become critical.Using the IBIS models with Allegro SI tool,our simulation supports our PCB design theory applied to design of SDRAM and PCB chips of TI's TMS320DM642.Simulation results show that our design can improve the signal integrity and enhance the reliability of high-speed digital video system. |
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| Keywords: | IBIS(input/output buffer information specification) model SDRAM high speed circuit design PCB(printed circuit board) design |
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